Mineral: | Tourmaline, Variety: Elbaite - Schorl / Feldspar, Variety: Albite | Chemical Formula: | Na(Li1,5AL1,5)Al6(BO3)3[Si6O18](OH)3(OH) / SiO2 - NaFe3+2Al6(BO3)3[Si6O18](OH)3(OH) / NaAlSi3O8 | Size: | | Weight: | | Transparence: | | Quantity: | | Origin: | Stak Nala, Haramosh Mts., Skardu District, Baltistan, Northern Areas, Pakistan | Three twinned multicolor tourmaline crystals with a black base followed by a green part and fading into colorless topping. All crystals have undamaged shape two with flat termination one with an irregular but not damaged top. At one side some albite crystals are attached. Fine twinned specimen from Pakistan.
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